[deliverable/linux.git] / arch / x86 / include / asm / hw_irq.h

#ifndef _ASM_X86_HW_IRQ_H
#define _ASM_X86_HW_IRQ_H

/*
 * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
 *
 * moved some of the old arch/i386/kernel/irq.h to here. VY
 *
 * IRQ/IPI changes taken from work by Thomas Radke
 * <tomsoft@informatik.tu-chemnitz.de>
 *
 * hacked by Andi Kleen for x86-64.
 * unified by tglx
 */

#include <asm/irq_vectors.h>

#ifndef __ASSEMBLY__

#include <linux/percpu.h>
#include <linux/profile.h>
#include <linux/smp.h>

#include <linux/atomic.h>
#include <asm/irq.h>
#include <asm/sections.h>

/* Interrupt handlers registered during init_IRQ */
extern asmlinkage void apic_timer_interrupt(void);
extern asmlinkage void x86_platform_ipi(void);
extern asmlinkage void kvm_posted_intr_ipi(void);
extern asmlinkage void error_interrupt(void);
extern asmlinkage void irq_work_interrupt(void);

extern asmlinkage void spurious_interrupt(void);
extern asmlinkage void thermal_interrupt(void);
extern asmlinkage void reschedule_interrupt(void);

extern asmlinkage void irq_move_cleanup_interrupt(void);
extern asmlinkage void reboot_interrupt(void);
extern asmlinkage void threshold_interrupt(void);

extern asmlinkage void call_function_interrupt(void);
extern asmlinkage void call_function_single_interrupt(void);

#ifdef CONFIG_TRACING
/* Interrupt handlers registered during init_IRQ */
extern void trace_apic_timer_interrupt(void);
extern void trace_x86_platform_ipi(void);
extern void trace_error_interrupt(void);
extern void trace_irq_work_interrupt(void);
extern void trace_spurious_interrupt(void);
extern void trace_thermal_interrupt(void);
extern void trace_reschedule_interrupt(void);
extern void trace_threshold_interrupt(void);
extern void trace_call_function_interrupt(void);
extern void trace_call_function_single_interrupt(void);
#define trace_irq_move_cleanup_interrupt  irq_move_cleanup_interrupt
#define trace_reboot_interrupt  reboot_interrupt
#define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi
#endif /* CONFIG_TRACING */

#ifdef	CONFIG_X86_LOCAL_APIC
struct irq_data;
struct pci_dev;
struct msi_desc;

enum irq_alloc_type {
	X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
	X86_IRQ_ALLOC_TYPE_HPET,
	X86_IRQ_ALLOC_TYPE_MSI,
	X86_IRQ_ALLOC_TYPE_MSIX,
	X86_IRQ_ALLOC_TYPE_DMAR,
	X86_IRQ_ALLOC_TYPE_UV,
};

struct irq_alloc_info {
	enum irq_alloc_type	type;
	u32			flags;
	const struct cpumask	*mask;	/* CPU mask for vector allocation */
	union {
		int		unused;
#ifdef	CONFIG_HPET_TIMER
		struct {
			int		hpet_id;
			int		hpet_index;
			void		*hpet_data;
		};
#endif
#ifdef	CONFIG_PCI_MSI
		struct {
			struct pci_dev	*msi_dev;
			irq_hw_number_t	msi_hwirq;
		};
#endif
#ifdef	CONFIG_X86_IO_APIC
		struct {
			int		ioapic_id;
			int		ioapic_pin;
			int		ioapic_node;
			u32		ioapic_trigger : 1;
			u32		ioapic_polarity : 1;
			u32		ioapic_valid : 1;
			struct IO_APIC_route_entry *ioapic_entry;
		};
#endif
#ifdef	CONFIG_DMAR_TABLE
		struct {
			int		dmar_id;
			void		*dmar_data;
		};
#endif
#ifdef	CONFIG_HT_IRQ
		struct {
			int		ht_pos;
			int		ht_idx;
			struct pci_dev	*ht_dev;
			void		*ht_update;
		};
#endif
#ifdef	CONFIG_X86_UV
		struct {
			int		uv_limit;
			int		uv_blade;
			unsigned long	uv_offset;
			char		*uv_name;
		};
#endif
	};
};

struct irq_cfg {
	unsigned int		dest_apicid;
	u8			vector;
};

extern struct irq_cfg *irq_cfg(unsigned int irq);
extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
extern void lock_vector_lock(void);
extern void unlock_vector_lock(void);
extern void setup_vector_irq(int cpu);
#ifdef CONFIG_SMP
extern void send_cleanup_vector(struct irq_cfg *);
extern void irq_complete_move(struct irq_cfg *cfg);
#else
static inline void send_cleanup_vector(struct irq_cfg *c) { }
static inline void irq_complete_move(struct irq_cfg *c) { }
#endif

extern void apic_ack_edge(struct irq_data *data);
#else	/*  CONFIG_X86_LOCAL_APIC */
static inline void lock_vector_lock(void) {}
static inline void unlock_vector_lock(void) {}
#endif	/* CONFIG_X86_LOCAL_APIC */

/* Statistics */
extern atomic_t irq_err_count;
extern atomic_t irq_mis_count;

extern void elcr_set_level_irq(unsigned int irq);

/* SMP */
extern __visible void smp_apic_timer_interrupt(struct pt_regs *);
extern __visible void smp_spurious_interrupt(struct pt_regs *);
extern __visible void smp_x86_platform_ipi(struct pt_regs *);
extern __visible void smp_error_interrupt(struct pt_regs *);
#ifdef CONFIG_X86_IO_APIC
extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
#endif
#ifdef CONFIG_SMP
extern __visible void smp_reschedule_interrupt(struct pt_regs *);
extern __visible void smp_call_function_interrupt(struct pt_regs *);
extern __visible void smp_call_function_single_interrupt(struct pt_regs *);
#endif

extern char irq_entries_start[];
#ifdef CONFIG_TRACING
#define trace_irq_entries_start irq_entries_start
#endif

#define VECTOR_UNDEFINED	(-1)
#define VECTOR_RETRIGGERED	(-2)

typedef int vector_irq_t[NR_VECTORS];
DECLARE_PER_CPU(vector_irq_t, vector_irq);

#endif /* !ASSEMBLY_ */

#endif /* _ASM_X86_HW_IRQ_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_HW_IRQ_H
1965aae3 PA	2	#define _ASM_X86_HW_IRQ_H
2e088436 TG	3
	4	/*
	5	* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
	6	*
	7	* moved some of the old arch/i386/kernel/irq.h to here. VY
	8	*
	9	* IRQ/IPI changes taken from work by Thomas Radke
	10	* <tomsoft@informatik.tu-chemnitz.de>
	11	*
	12	* hacked by Andi Kleen for x86-64.
	13	* unified by tglx
	14	*/
	15
9b7dc567	16	#include <asm/irq_vectors.h>
2e088436 TG	17
	18	#ifndef __ASSEMBLY__
	19
	20	#include <linux/percpu.h>
	21	#include <linux/profile.h>
	22	#include <linux/smp.h>
	23
60063497	24	#include <linux/atomic.h>
2e088436 TG	25	#include <asm/irq.h>
	26	#include <asm/sections.h>
	27
2e088436	28	/* Interrupt handlers registered during init_IRQ */
1d9090e2 AK	29	extern asmlinkage void apic_timer_interrupt(void);
	30	extern asmlinkage void x86_platform_ipi(void);
	31	extern asmlinkage void kvm_posted_intr_ipi(void);
	32	extern asmlinkage void error_interrupt(void);
	33	extern asmlinkage void irq_work_interrupt(void);
	34
	35	extern asmlinkage void spurious_interrupt(void);
	36	extern asmlinkage void thermal_interrupt(void);
	37	extern asmlinkage void reschedule_interrupt(void);
	38
1d9090e2 AK	39	extern asmlinkage void irq_move_cleanup_interrupt(void);
	40	extern asmlinkage void reboot_interrupt(void);
	41	extern asmlinkage void threshold_interrupt(void);
	42
	43	extern asmlinkage void call_function_interrupt(void);
	44	extern asmlinkage void call_function_single_interrupt(void);
2e088436	45
cf910e83 SA	46	#ifdef CONFIG_TRACING
	47	/* Interrupt handlers registered during init_IRQ */
	48	extern void trace_apic_timer_interrupt(void);
	49	extern void trace_x86_platform_ipi(void);
	50	extern void trace_error_interrupt(void);
	51	extern void trace_irq_work_interrupt(void);
	52	extern void trace_spurious_interrupt(void);
	53	extern void trace_thermal_interrupt(void);
	54	extern void trace_reschedule_interrupt(void);
	55	extern void trace_threshold_interrupt(void);
	56	extern void trace_call_function_interrupt(void);
	57	extern void trace_call_function_single_interrupt(void);
	58	#define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt
	59	#define trace_reboot_interrupt reboot_interrupt
	60	#define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi
	61	#endif /* CONFIG_TRACING */
	62
26011eee	63	#ifdef CONFIG_X86_LOCAL_APIC
74afab7a	64	struct irq_data;
947045a2 JL	65	struct pci_dev;
	66	struct msi_desc;
	67
	68	enum irq_alloc_type {
	69	X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
	70	X86_IRQ_ALLOC_TYPE_HPET,
	71	X86_IRQ_ALLOC_TYPE_MSI,
	72	X86_IRQ_ALLOC_TYPE_MSIX,
0921f1da	73	X86_IRQ_ALLOC_TYPE_DMAR,
43fe1abc	74	X86_IRQ_ALLOC_TYPE_UV,
947045a2	75	};
b5dc8e6c JL	76
b5dc8e6c JL	77	struct irq_alloc_info {
947045a2	78	enum irq_alloc_type type;
b5dc8e6c JL	79	u32 flags;
b5dc8e6c JL	80	const struct cpumask mask; / CPU mask for vector allocation */
947045a2 JL	81	union {
	82	int unused;
	83	#ifdef CONFIG_HPET_TIMER
	84	struct {
	85	int hpet_id;
	86	int hpet_index;
	87	void *hpet_data;
	88	};
	89	#endif
	90	#ifdef CONFIG_PCI_MSI
	91	struct {
	92	struct pci_dev *msi_dev;
	93	irq_hw_number_t msi_hwirq;
	94	};
	95	#endif
	96	#ifdef CONFIG_X86_IO_APIC
	97	struct {
	98	int ioapic_id;
	99	int ioapic_pin;
	100	int ioapic_node;
	101	u32 ioapic_trigger : 1;
	102	u32 ioapic_polarity : 1;
	103	u32 ioapic_valid : 1;
	104	struct IO_APIC_route_entry *ioapic_entry;
	105	};
0921f1da JL	106	#endif
	107	#ifdef CONFIG_DMAR_TABLE
	108	struct {
	109	int dmar_id;
	110	void *dmar_data;
	111	};
49e07d8f JL	112	#endif
	113	#ifdef CONFIG_HT_IRQ
	114	struct {
	115	int ht_pos;
	116	int ht_idx;
	117	struct pci_dev *ht_dev;
	118	void *ht_update;
	119	};
43fe1abc JL	120	#endif
	121	#ifdef CONFIG_X86_UV
	122	struct {
	123	int uv_limit;
	124	int uv_blade;
	125	unsigned long uv_offset;
	126	char *uv_name;
	127	};
947045a2 JL	128	#endif
947045a2 JL	129	};
b5dc8e6c JL	130	};
b5dc8e6c JL	131
9338ad6f	132	struct irq_cfg {
5f0052f9	133	unsigned int dest_apicid;
9338ad6f	134	u8 vector;
9338ad6f DS	135	};
9338ad6f DS	136
55a0e2b1 JL	137	extern struct irq_cfg *irq_cfg(unsigned int irq);
55a0e2b1 JL	138	extern struct irq_cfg irqd_cfg(struct irq_data irq_data);
74afab7a JL	139	extern void lock_vector_lock(void);
74afab7a JL	140	extern void unlock_vector_lock(void);
74afab7a	141	extern void setup_vector_irq(int cpu);
e32c67e0	142	#ifdef CONFIG_SMP
9338ad6f	143	extern void send_cleanup_vector(struct irq_cfg *);
f0e5bf75	144	extern void irq_complete_move(struct irq_cfg *cfg);
e32c67e0 JL	145	#else
e32c67e0 JL	146	static inline void send_cleanup_vector(struct irq_cfg *c) { }
f0e5bf75	147	static inline void irq_complete_move(struct irq_cfg *c) { }
e32c67e0	148	#endif
7ec13187	149
74afab7a	150	extern void apic_ack_edge(struct irq_data *data);
74afab7a	151	#else /* CONFIG_X86_LOCAL_APIC */
26011eee JL	152	static inline void lock_vector_lock(void) {}
26011eee JL	153	static inline void unlock_vector_lock(void) {}
74afab7a	154	#endif /* CONFIG_X86_LOCAL_APIC */
26011eee	155
2e088436 TG	156	/* Statistics */
	157	extern atomic_t irq_err_count;
	158	extern atomic_t irq_mis_count;
	159
ea6cd250	160	extern void elcr_set_level_irq(unsigned int irq);
1a331957	161
2b97df06	162	/* SMP */
1d9090e2 AK	163	extern __visible void smp_apic_timer_interrupt(struct pt_regs *);
	164	extern __visible void smp_spurious_interrupt(struct pt_regs *);
	165	extern __visible void smp_x86_platform_ipi(struct pt_regs *);
	166	extern __visible void smp_error_interrupt(struct pt_regs *);
2c1b284e JSR	167	#ifdef CONFIG_X86_IO_APIC
	168	extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
	169	#endif
3e5095d1	170	#ifdef CONFIG_SMP
1d9090e2 AK	171	extern __visible void smp_reschedule_interrupt(struct pt_regs *);
	172	extern __visible void smp_call_function_interrupt(struct pt_regs *);
	173	extern __visible void smp_call_function_single_interrupt(struct pt_regs *);
e7f08dfd	174	#endif
2b97df06	175
3304c9c3	176	extern char irq_entries_start[];
25c74b10	177	#ifdef CONFIG_TRACING
3304c9c3	178	#define trace_irq_entries_start irq_entries_start
25c74b10	179	#endif
497c9a19	180
79a51b25 PB	181	#define VECTOR_UNDEFINED (-1)
79a51b25 PB	182	#define VECTOR_RETRIGGERED (-2)
9345005f	183
22dc12d1 TG	184	typedef int vector_irq_t[NR_VECTORS];
22dc12d1 TG	185	DECLARE_PER_CPU(vector_irq_t, vector_irq);
2e088436	186
22dc12d1 TG	187	#endif /* !ASSEMBLY_ */
22dc12d1 TG	188
1965aae3	189	#endif /* _ASM_X86_HW_IRQ_H */